List of power generating stations in Ontario

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There are various power generating stations in Ontario using various sources of energy.


Nuclear power accounts for almost half of Ontario's power generation, and represents the 'baseload' of its power supply. The government plans to maintain nuclear power's role in energy generation through to 2025. Ontario currently has 16 nuclear units in operation. These reactors amount to 11,400 MW of generation capacity and are located at three sites. The stations were constructed by the provincial Crown corporation, Ontario Hydro. In April 1999 Ontario Hydro was split into 5 component Crown corporations with Ontario Power Generation (OPG) taking over all electrical generating stations.



Bruce Nuclear Generating Station is located on the eastern shore of Lake Huron, in the communities of Inverhuron and Tiverton, Ontario. It occupies 932 ha (2300 acres) of land.[1] It is the largest nuclear generating station in the world by total reactor count, and number of operational reactors. It was constructed in stages between 1970 and 1987 by Ontario Hydro. In June 2000, Ontario Power Generation entered into a long term lease agreement with private sector consortium Bruce Power to take over operation of the Bruce station. In May 2001, Bruce Power began operations. The lease is for 18 years (until 2019) with an option to extend a further 25 years (to 2044).[2]


Darlington Nuclear Generating Station panorama2.jpg

Darlington Nuclear Generating Station is located on the north shore of Lake Ontario in Clarington, Ontario. The facility derives its name from the Township of Darlington, the former name of the municipality. The Darlington station is a large nuclear facility and comprises 4 CANDU nuclear reactors, having a total output of 3,512 MWe (capacity net) when all units are online. It provides about 20 percent of Ontario's electricity needs, enough to serve a city of two million people.[3] The facility was constructed in stages between 1981–1993 by Ontario Hydro, and is now owned and operated by Ontario Power Generation.



Pickering Nuclear Generating Station is located on the north shore of Lake Ontario in Pickering, Ontario. It has capacity to generate 3,094 MW of power with all eight of its units, producing 15-20% of Ontario's power.[4]

Co-located at the Pickering station is a single 1.8 MWe wind turbine named the OPG 7 commemorative turbine.

Natural Gas[edit]


Ontario Cogeneration facilities
Name Location Owner Fuel Power Cogeneration Ref
Birchmount Energy Centre Markham Markham District Energy Natural gas 2.6 MW Heat for the Markham Centre District Energy System [5]
Bur Oak Energy Centre Markham Markham District Energy Natural gas 3.25 MW Heat for the Markham Centre District Energy System [6]
Cardinal Cogeneration Plant Edwardsburgh/Cardinal Capstone Infrastructure Natural gas 156 MW [7]
Cochrane Cogeneration Station
Durham College District Energy
East Windsor Cogeneration Centre
Essar Cogeneration Facility Sault Ste. Marie, Ontario Essar Steel Algoma Blast furnace and coke oven gas byproducts 63 MW Supply process steam for steel manufacturing operations [8]
GTAA Cogeneration Plant
Great Northern Tri-Gen Facility
Iroquois Falls Power Plant
Kirkland Lake Cogeneration Station
Lake Superior Power Facility
London Cogeneration Facility
Mississauga Cogeneration Plant
Ottawa Cogeneration Plant
Sarnia Regional Cogeneration Plant
Sudbury District Energy Cogeneration Plant
Thorold Co-generation Plant
Trent Valley Cogeneration Plant
Windsor Cogeneration Plant
Warden Energy Centre


Defunct stations[edit]



Wesleyville Generating Station

Wesleyville Generating Station was a planned 2,000-megawatt oil-fired power plant constructed by Ontario Hydro in the mid 1970s, located in Port Hope, Ontario. The plant was expected to use Bunker C oil, but was never completed due to the 1973 oil crisis. The plant now hosts various different functions to train OPG employees and contractors, including firefighting, rigging, and other safety courses.[9][10] A 208 m (682 ft) tall chimney[11] was built at the site and remains the fourth tallest in all of Canada.



  1. ^ "Global Security Article" (PDF). Retrieved 22 March 2011. 
  2. ^ "Bruce A Refurbishment". Bruce Power (Golder Associates). December 2004 (revision 1). Retrieved 22 March 2011.  Check date values in: |date= (help)
  3. ^ "Darlington Nuclear". Retrieved 2009-02-10. 
  4. ^
  5. ^ "Birchmount Energy Centre (2.6 MW) – Markham". Ontario Power Authority. Retrieved 28 July 2014. 
  6. ^ "Bur Oak Energy Centre (3.25 MW) – Markham". Ontario Power Authority. Retrieved 30 July 2014. 
  7. ^ "Cardinal Power - Fact Sheet" (PDF). Capstone Infrastructure. Retrieved 30 July 2014. 
  8. ^ "Essar Co-generation Facility - Sault Ste. Marie". Ontario Power Authority. Retrieved 27 July 2014. 
  9. ^ About Wesleyville Village
  10. ^ "Wesleyville: here we go again... | Northumberland Today". Retrieved 2014-06-07. 
  11. ^ "[cdn-nucl-l] Wesleyville". Retrieved 2014-06-07.